I assume you mean the 4 13 jump? 30 min might not be enough, need to leave the key in position 2 for more than 30 minutes, Ive seen people say 35 and some even to be sure leave it for 45. Also, did you see and continue to see all lights on the dash flashing when you did that? How is the battery state?
Also, you're right, if it had been successful it should have written the vin to the ECU.
One last thought, in case it has push button start, did you leave the key in the car the whole 30 min?